[cfe-commits] [PATCH] Remove -Wdisabled-macro-expansion

Richard Smith richard at metafoo.co.uk
Mon Oct 29 19:46:36 PDT 2012

On Mon, Oct 29, 2012 at 5:53 PM, Eli Friedman <eli.friedman at gmail.com> wrote:
> Per subject, remove -Wdisabled-macro-expansion.  It's triggering on
> normal uses of stdbool.h in C++ (at least, however normal it is to use
> stdbool.h in C++). Because we're trying to encourage people to use
> -Weverything,

I share Chandler's concerns about this. Why are you doing that?

In my experience, -Weverything is a great tool for "I just found a
bug, could you have told me about it?" but not for much else (from an
end-user's perspective). We have plenty of warnings which simply don't
make sense for a lot of people (for instance, almost any use of any
C++11 feature will generate some kind of warning), and it's not
reasonable to remove them just to make -Weverything more

> it isn't acceptable for it to trigger warnings for usage
> of headers included with the compiler, and as far as I can tell, there
> isn't any way to fix the header. (See patch for a testcase that
> checks we don't trigger any warnings from stdbool.h.)
> I'm planning to commit this unless someone has an alternative suggestion.

Could you suppress the warning if the spelling location for the token
which would have been expanded is in a system header?

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